Hub



FIG. 1 is a perspective view of a hub of the new design;

FIG. 2 is a left side elevational view of the hub of FIG. 1;

FIG. 3 is a front elevational view of the hub of FIG. 1;

FIG. 4 is a top plan view of the hub of FIG. 1;

FIG. 5 is a right side elevational view of the hub of FIG. 1;

FIG. 6 is a rear elevational view of the hub of FIG. 1; and,

FIG. 7 is a bottom plan view of the hub of FIG. 1.

The portions of the Figures shown in phantom lines are not part of the claimed design and are for illustration purposes only. 

The ornamental design for a hub, as shown and described. 